195040

Appears in sequences

• Number of permutations of length 2*n-1 with no local maxima or minima in even positions.at n=5A122647
• a(n) = 225*n^2 - 251*n + 70.at n=30A156810
• a(n) = A000129(n) + n.at n=15A209971
• Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 577", based on the 5-celled von Neumann neighborhood.at n=21A283085